Hammer.



No. 636,386. Patented Nov. 7, I899.

J. E. LENHULT.

HAMMER.

(Application filed Nov. 19, 1898.) (No Model.)

Witnesses.

Iny entor.

wz/w 6 v v UNITED STATES PATENT l Fries.-

JOHN E. LENHULT, OF LEETES ISLAND, CONNECTICUT.

HAMMER.

SPECIFICATION forming part of Letters Patent No. 636,386, dated November7, 1899. Application filed November 19, 1898. $erial1l0. 696,891. (Nomodel.)

To all whom it may concern:

Be it known that I, JOHN E. LENHULT, a citizen of the United States,residing at Leetes Island,'in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inHammers, of which the following is a specification, reference being hadtherein to the accompanying drawings.

My invention relates to improvements in peen-hammers, and applies moreespecially to that class of poem-hammers having detachable bits.

It is the object of my invention to construct a hammer of few parts sodesigned that the bit will be held rigid and can be readily securedthereto or removed therefrom, as well as to manufacture the same at theminimum cost.

To this end my invention consists in the peen-hammer having certaindetails of construction and combination of parts, as hereinafter setforth, and more particularly pointed out in the claims.

Referring to the drawings, in which like numerals designate like partsin the several views, Figure 1 is a side elevation of the hammer, thehandle being broken off midway of its length. Fig. 2 is an end elevationthereof. Fig. 3 is a sectional view upon line A B of Fig. 1. Fig. 4 isan inside view of one of the hammer-head members, and Fig. 5 is aninside view of the other hammer-head member.

In hammers of this character heretofore made the bit is secured to thehead by means of a bolt, which passes through it and the hammer-head.This method has proved unsatisfactory, because the bit is expensive tomake, requiring holes to be drilled therethrough which must correspondexactly with the bolt-holes in the hammer-head, and because the shock ofthe blow comes upon the bolts which hold the bit in place, causing thebolt to break frequently and also enlarging the hole in the bit, afurther objection being that no solid backing is provided for the bit,the bolts taking all of the strain. Hence the bit shifts within thehammer-head as the holes become enlarged, and the operator is never sureof the strength or position of his blow. I overcome these manifestobjections nates the ordinary wooden handle.

. their positions in relation to each other.

by making the head in two parts and forming an oppositely-disposedrecess in each of said parts, within which the bit is fitted and heldtherein by means of projections upon the body of the bit, and bysecuring the two parts of the head together with bolts, which passthrough the head between the inner ends of the bits.

In the drawings the numerals 1 1 designate the bits, which are made ofsteel and sharpened atone end, as is common in the art, and providedwith one or more projections or bosses 2 2 adjacent to the opposite end,the said bosses being formed by forcing out the stock from the oppositeside while the metal is in a hot state; 3 and 4., the two memhere, whichare secured together by the bolts 5 5 to form the hammer-head, and 6desig- The two members 3 and 4. are made, preferably, of malleable iron,there being atthe opposite ends of each of these members a recess 7 ofsubstantially the same width as the bit and about half as deep as thebits are thick. Integral with the members 3 are the lugs 8 8, which forma backing for the bits and project into the recesses 9 9 in the member4. The bolts 5 5 are inserted through the holes 10 10 in the lugs 8 8and the recesses 9 9, and beneath the bolt-heads I prefer to place awasher 11, of leather or other like material, which will prevent the'nuts 12 12 from becoming loosened by the continuous jar and shock ofthe hammer-blows. The semicircular recesses 13 are located to correspondwith the projections 2 2 upon the bit 1 and are adapted to hold the bitin place against outward movement. In Fig. 3 I have shown the section ofone of the bits wherein the projection is within the recess in operativeposition.

When the members 3 and 4 are bolted together, the lugs 8 8 enter therecesses 9 9 and prevent the two members from shifting It is apparentfrom the drawings that the bit can be inserted or taken outby simplyloosening the nuts sufficiently to allow the projections or bosses uponthe bits to be freed from the recesses within which they are fitted and,again, that when the bit is locked in the head the force of the blowcomes upon the lugs S 8, against which the back end of the bits abut.

The handle 6 is of the ordinary type and is held rigid within thesemicircular grooves 14 in the hammer-heads.

There are minor changes and alterations that can be made Within myinvention, and I would therefore have it understood that I do not limitmyself to the exact construction herein shown and described, but claimall that falls fairly within the spirit and scope of my invention; but

What I do claim as new, and desire to secure by Letters Patent, is

1. In a peen-hammer, in combination with cutti n g-bits havinglaterally-projecting bosses thereupon, of a two-part hammer-head havingbit-pockets at either end thereof, within which are inserted the saidcutting-bits and which surround the said bits upon all sides for aport-ion of their length, laterally-projecting bosses upon one of thesections of the said hammer-head of less width than the said section,and oppositely-disposed recesses in the other section, and means, astie-bolts, for securing thesaid sections together, the said tie-boltspassing through the said bosses and recesses in the section between theinner ends of the said cutting-bits, substantially as described.

2. In a peen-hammer, the combination of the hammer-head comprising thetwo members 3 4, having the bit-pockets 7 7 at either end thereof, andthe integral lugs 8 upon one of said members and forming the inner sidesof said pockets, bits 1 1 adapted to be secured in said pockets,locking-bolts 5 5, nuts 12 12 and resilient washers 11 11, allconstructed and operating substantially as described.

In testimony whereof I afiix my signature in presence of two Witnesses.

JOHN E. LENHUL'I.

Witnesses:

GEORGE E. HALL, J. PETER DEJOU.

